Flower is a kind of symbol, that is a symbol language. When people are happy or sad, confess their mind, express condolences to the deads, they express their mind with flowers. Because the symbolism contained in the flower play the role of a medium of communication, which transfer the thoughts and feelings of people metaphorically. That is "the language of flowers". At one time, the language of flowers were favored between the knights of the Middle Ages instead of letters. Language of flowers arose spontaneously in every time and place where nature and humans coexist. In addition, it exists in various ways that the meanings cannot be innumerable depending on the historical, cultural and geographical contexts.

Flowers were closely associated with death from the past. The characteristic of flowers that do not persist forever the beauty and wither eventually has a symbolism of death. However, I also means the renaturation and renaturation as very religious presence that repeats the creation and extinction every year. These custom floral tribute to the dead was a man's long religious ceremony. The 5-year-old's remains of Paleolithic Era, called Heungsu, has been found at Durubong Cave in Cheongone, Chungbuk in Korea. It was discovered around the pollen of chrysanthemums. This flower was placed artificially break rather than blooming on the spot. Through this, we can know that humanity has used the flowers to mourn for deceased as the funeral customs for a long time.

The death is universal and ordinary. "Man is mortal.", that is, a living person must be prepared to die, humans all die and go into the grave. The grave is said to have been derived from dummy of nothing(無). However, in the place where there is nothing, the tombstone is placed, and it puts the unspoken voices. It is the voice of the dead. The various voices that might be screaming, resignation, repentance or conviction crash in the silence.